diff --git a/application/api/example/data.js b/application/api/example/data.js
new file mode 100644
index 0000000..3f6208c
--- /dev/null
+++ b/application/api/example/data.js
@@ -0,0 +1,9 @@
+({
+  access: 'public',
+
+  method: async () => {
+    return 'Hello world';
+  },
+
+  returns: 'string',
+});
diff --git a/application/api/system/introspect.js b/application/api/system/introspect.js
new file mode 100644
index 0000000..d055e57
--- /dev/null
+++ b/application/api/system/introspect.js
@@ -0,0 +1,4 @@
+({
+  access: 'public',
+  method: application.introspect,
+});
diff --git a/package-lock.json b/package-lock.json
index df449e1..06e1b93 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -9,7 +9,7 @@
       "version": "1.0.0",
       "license": "MIT",
       "dependencies": {
-        "impress": "^3.0.11"
+        "impress": "^3.0.13"
       },
       "devDependencies": {
         "@flydotio/dockerfile": "^0.4.10",
@@ -25,6 +25,9 @@
         "lint-staged": "^14.0.1",
         "prettier": "3.0.3",
         "typescript": "^5.2.2"
+      },
+      "engines": {
+        "node": "18 || 20"
       }
     },
     "node_modules/@aashutoshrathi/word-wrap": {
diff --git a/package.json b/package.json
index 89a3e45..4c7306a 100644
--- a/package.json
+++ b/package.json
@@ -20,7 +20,7 @@
   },
   "license": "MIT",
   "dependencies": {
-    "impress": "^3.0.11"
+    "impress": "^3.0.13"
   },
   "devDependencies": {
     "@flydotio/dockerfile": "^0.4.10",